September weather forecastSinaboi, Indonesia
September
Weather in September
September, the first month of the autumn in Sinaboi, is still a tropical month, with an average temperature varying between 25.5°C (77.9°F) and 31.7°C (89.1°F).Temperature
Sinaboi's shift into September is marked by a subtle change to a still hot 31.7°C (89.1°F) from August's 32°C (89.6°F) in temperature. During September, the temperature tends to dip to an average of 25.5°C (77.9°F) at night.Heat index
The heat index in September is appraised at a blistering 40°C (104°F). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.Heat index's context suggests values are appropriate for shady areas and slight breezes. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', gives an indication of how one might feel in terms of heat after considering humidity. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values hold great significance to children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.
Humidity
The months with the lowest humidity are August and September, with an average relative humidity of 71%.Rainfall
In Sinaboi, in September, it is raining for 21.7 days, with typically 54mm (2.13") of accumulated precipitation. In Sinaboi, during the entire year, the rain falls for 276 days and collects up to 1334mm (52.52") of precipitation.Snowfall
September is the only month when snow falls. The month with the most snowfall is September, when snow falls for 0.1 days and typically aggregates up to 2mm (0.08") of snow.Daylight
The average length of the day in September is 12h and 8min.On the first day of the month, sunrise is at 06:11 and sunset at 18:20. On the last day of September, sunrise is at 06:03 and sunset at 18:09 WIB.
Sunshine
The average sunshine in September is 8.9h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 7 suggests these recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sinaboi, Indonesia
- Average high temperature in September: 31.7°C
The warmest months (with the highest average high temperature) are April, May, August and October (32°C).
The month with the lowest average high temperature is December (30.5°C).
- Average low temperature in September: 25.5°C
The month with the highest average low temperature is May (26.2°C).
The coldest months (with the lowest average low temperature) are January and February (24.6°C).
Average pressure in September
Sinaboi, Indonesia
- Average pressure in September: 1009.7mbar
The month with the highest atmospheric pressure is January (1010.4mbar).
The month with the lowest atmospheric pressure is May (1008.7mbar).
Average wind speed in September
Sinaboi, Indonesia
- Average wind speed in September: 7.3km/h
The windiest months (with the highest average wind speed) are July and August (7.7km/h).
The calmest month (with the lowest average wind speed) is December (6.1km/h).
Average humidity in September
Sinaboi, Indonesia
- Average humidity in September: 71%
The month with the highest relative humidity is December (79%).
The months with the lowest relative humidity are August and September (71%).
Average rainfall in September
Sinaboi, Indonesia
- Average rainfall in September: 54mm
The wettest month (with the highest rainfall) is December (198mm).
The driest month (with the least rainfall) is July (52mm).
Average rainfall days in September
Sinaboi, Indonesia
- Average rainfall days in September: 21.7 days
The month with the highest number of rainy days is November (27.3 days).
The month with the least rainy days is June (16.8 days).
Average snowfall in September
Sinaboi, Indonesia
- Average snowfall in September: 2mm
The month with the highest snowfall is September (2mm).
The months with the least snowfall are January, February, March, April, May, June, July, August, October, November and December (0mm).
Average snowfall days in September
Sinaboi, Indonesia
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Sinaboi, Indonesia
- Average daylight in September: 12h and 6min
The month with the longest days is June (Average daylight: 12h and 12min).
The month with the shortest days is December (Average daylight: 12h and 0min).
- Average sunshine in September: 8h and 54min
The months with the most sunshine are June and July (Average sunshine: 9h and 0min).
The month with the least sunshine is December (Average sunshine: 7h and 36min).
Average sunshine days in September
Sinaboi, Indonesia
- Average sunshine days in September: 6.5 days
The month with the most sunshine days is June (11.3 days).
The month with the least sunshine days is November (2.4 days).
Average UV index in September
Sinaboi, Indonesia
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
Sinaboi, Indonesia
- Average cloud cover in September: 36
The month with the most cloud cover is November (Cloud cover 50).
The months with the least cloud cover are June and July (Cloud cover 32).
Average visibility in September
Sinaboi, Indonesia
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (10km).
The month with the lowest visibility is November (9km).
